Pith Number

pith:PM5WVKIE

pith:2019:PM5WVKIEPSWUUDTDNAHA4EAVK2

not attested not anchored not stored refs pending

Adaptive First-Order System Least-Squares Finite Element Methods for Second Order Elliptic Equations in Non-Divergence Form

Shun Zhang, Weifeng Qiu

arxiv:1906.11436 v1 · 2019-06-27 · math.NA · cs.NA

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\usepackage{pith}
\pithnumber{PM5WVKIEPSWUUDTDNAHA4EAVK2}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

1 paper in Pith

Adaptive Flux-Only Least-Squares Finite Element Methods for Linear Transport Equations

Receipt and verification

First computed	2026-05-17T23:42:07.076269Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b3b6aa9047cad4a0e63680e0e101556a61bc7ad8a7562aa05c2ef1d61c66361

Aliases

arxiv: 1906.11436 · arxiv_version: 1906.11436v1 · doi: 10.48550/arxiv.1906.11436 · pith_short_12: PM5WVKIEPSWU · pith_short_16: PM5WVKIEPSWUUDTD · pith_short_8: PM5WVKIE

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/PM5WVKIEPSWUUDTDNAHA4EAVK2 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 7b3b6aa9047cad4a0e63680e0e101556a61bc7ad8a7562aa05c2ef1d61c66361

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "94570d28e45ef6064e19263f698eb3b56e9ef3963c5574bf27e37e8650fac8ce",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2019-06-27T04:57:22Z",
    "title_canon_sha256": "ce68335b8ae82dc16a990c162c6b0428bf447118edb2d2930ed6ffe649520a8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.11436",
    "kind": "arxiv",
    "version": 1
  }
}